Objective\ To modified the conventional DMSO procedure of freeze fracture for scanning electron microscopy(SEM) using glycylglycine(G G) method which was developed by Pinto da Silva(1981).

• 目的运用甘氨酰替甘氨酸浸泡法对常规的DMSO法冷冻－割断扫描电镜制样技术加以改良。